TY - CHAP ID - S.1999a T1 - Neuro-Fuzzy Methods Applied to the German Stock Index DAX A1 - Siekmann, S. A1 - Neuneier, R. A1 - Kruse, Rudolf ED - Ribero, R. A. ED - Yager, Ronald R. ED - Kacprzyk, J. T3 - Soft Computing in Financial Engineering Y1 - 1999 PB - Physica-Verlag AD - Heidelberg ER -